Yamaha P-45 vs. Yamaha P-125 | 88-key Weighted Action Keyboards | Best Entry-Level Digital Pianos

Hi!  My name is Barb, and I work in the piano department at Popplers Music in Sioux Falls, SD.  I started playing the piano when I was seven years old.  I tortured my family with hours of practicing as a child, and eventually entered college as a piano major.  In the beginning of my music career, I played keyboards (including Yamaha keyboards!) in a variety of bands across the country, and then settled down and performed professionally, regionally, for many years.  I recorded a handful of piano CD’s and also gave piano lessons!  In the early days I always leaned on my musician friends whenever I needed a new or additional keyboard, but did eventually learn how to find the right keyboard on my own because I knew what to look for to suit my needs.  Now let’s talk pianos! 


Many of our customers stop into our store wanting to purchase a digital piano.  Some have a child who is wanting to learn how to play the piano, some took lessons long ago and want to start again, and some simply don’t have space for a traditional piano.  While there are many options available, I want to dive into two of our Yamaha entry-level digital pianos that we simply can’t keep in stock:   

Yamaha P-45                       Yamaha-P125 

Pretty similar, right? 


Let’s talk about some of the features that both keyboards share, then we can explore the differences.  First, the Yamaha P-45 and the Yamaha P-125 are both lightweight, portable, entry-level keyboards that REALLY deliver when it comes to the sound and feel of an acoustic piano.  They are also quite affordable and never require tuning!  Both digital pianos feature Yamaha’s graded hammer standard (GHS) keyboard, which means your lower bass notes feel a bit heavier when you play, and the higher treble parts feel lighter.  Granted, if you are a professional pianist and are looking at one of these keyboards as your primary piano, you may want to look at Yamaha’s full product line to better suit your needs:



The Yamaha P-45 and P-125 do not include a stand or a bench.  Both models do come with a black square sustain pedal and power adapter, however.  Yamaha does offer additional accessory options that you may want to consider.  
If you need a stand for your digital piano and want it to have the appearance of an acoustic piano, you might consider a side stand (below left).  For a more basic stand, the X-Stand (below right) would do the trick! 


Did I mention the price?  For an 88-key weighted portable keyboard with Yamaha’s signature sound sampling, built-in metronome, extra voices and transposing capability, you really can’t go wrong with either one!  The Yamaha P-45 and P-125 are Yamaha’s lowest-cost 88-note, weighted-key digital pianos that Yamaha offers. 
The P-45 is $549.99 (not including accessories) and the P-125 is $699.99 (not including accessories).  


As a rule of thumb when it comes to digital pianos, as the price goes up the main factors that change are:

  • Keyboard Action
  • Speaker Quality
  • Sound Sampling
  • Style
  • Range/Depth of Technology

So, what are the differences in these two keyboards?  I want to talk about the things that are most important to the customers who come into Popplers Music.  Consider this a broad overview of what matters most.  For a detailed chart on all the specifications for each keyboard, please click on the blue hyperlinks below that will guide you to Yamaha’s website for more detailed information.  For now, let’s keep it simple! 


P-45 Specs                                                              

GHS Action                                                                

10 Voices (including electric piano and strings)

*Number of Polyphony (64)                                       

No recording capability                                             

Piano Sound – AMW Stereo Sampling                   

No dash button display         


P-125 Specs 

GHS Action

24 Voices 

*Number of Polyphony (192) 

Can record one song with two tracks 

Pure CF Sound Engine 

Press a button to change sounds


*About Polyphony:  Polyphony is just music technology jargon. 🙃 In other words, if you’re playing a massive arpeggio up the keyboard at a fast rate with the sustain pedal held down, the keyboard can only capture up to 64 of those notes at one time with the P-45.  As a piano player gets more advanced, the number of notes that can be captured becomes much more important. The P-125 would obviously be a better choice for more advanced players.

Food for Thought:

GHS Action: The P-125 has a more dynamic range of loud and soft tones and also has a bit more resistance in the key response. 
The piano sounds that are sampled refer to the actual sounds that are produced within the keyboard. Yamaha’s sampled sounds in the P-125 are much more comparable to Yamaha’s finest concert grand pianos than those of the P-45.

Switching sounds and commands on the P-45 is quite easy, too.  Simply press the “Function” button and simultaneously press the note on the keyboard that corresponds with the sound or function (such as adding a metronome) you would like to access. The P-125 has buttons on the top panel for easy and quick accessibility.



And that’s about it!  This is a simplified, “in-a-nutshell” comparison between Yamaha’s two most affordable 88-key weighted action keyboards, and I hope this helps you in your decision-making process!  If you are looking for an inexpensive keyboard, but want a great sound and a great value, Yamaha has sure made it easy for you!  


We sure hope this helps you make an educated decision and find the perfect piano for YOU! Popplers Music has locations in North Dakota and South Dakota, and we work with musicians and educators all around the country. If you are in the region of either of our store locations, we invite you to stop on in and visit us!  If you are located somewhere else in the country, we invite you to check out our online piano store at www.popplerspiano.com

We offer free shipping on many products, an industry-leading trade-up program, lease options on entry-level digital pianos, and financing on high-end digital/hybrid/acoustic pianos.  We also offer direct text support, product warranties, and knowledgeable, friendly staff ready to help you find the piano that best suits your needs so you can enjoy a lifetime of music-making!  Learn more at www.popplerspiano.com or give us a call! 

   Barb Weidenaar | Sioux Falls Piano Department 
  Josh Gratton | Grand Forks Piano Department, Manager

Popplers Music Locations: 

1726 S Washington St S5, Grand Forks, ND 58201  
1119 W 41st St, Sioux Falls, SD 57105 
Phone: 800-437-1755